Benefits of a ball machine
There are a number of reasons to invest in a tennis ball machine.
First, tennis ball machines provide a consistent shot so that you can benefit from repetition and really "groove" your strokes. Even the best teaching pro can't feed you the ball the exact same way each time. This is a must if you want to put a stroke into your DNA. You know you've made it when you become more consistent than the machine.
Second, tennis ball machines are a cheap investment compared to the costs of hiring a pro to feed you balls. It might have more personality.
Third, tennis ball machines work with your schedule. With a ball machine, you are not reliant on anyone but the court time to determine when you can play. This also means you can play for as long as you want without worrying about running out of lesson time.
Fourth, tennis ball machines allow you to practice at your own pace. If you want to slowly correct and practice a stroke, you can do so without the patience of your hitting partner running out. If you want a workout, the machine will have you gasping for air. Not only can a ball machine throw balls hard and fast, they can be programmed to have you running around the court. On some machines, you can even set up a shot sequence you want to practice.
Whether you are serious about being able to play when you want without relying on a hitting partner or serious about improving fast, you should seriously consider a tennis ball machine.